Have to, had to - modal verb. Application examples and special cases

The Verb have has a very wide application, both independently and in conjunction with other words. In addition, there are many overlapping areas with other similar verbs.

Need to vs. have to

In order to talk about the need to do something, you can use the verb need to.

- You might need to see a doctor/ Maybe you need to see a doctor.

- A number of questions need to be asked/ Specified number of questions to be set.

And in contrast to Express absence of necessity to do something used don’t have, don’t need to, haven’t got to or needn't’t.

- Many women don’t have to work/ Many women do not have to work.

- You don’t have to learn any new typing skills/ You don't have to learn any new typing skills.

- You don’t need to buy anything/ You do not have to buy anything.

- I haven’t got to go to work/ I don't have to go to work.

- I can pick John up. You needn't’t bother/ I can drop John. You don't need to bother.

To Express permission to someone something not to do, needn't use’t.

- You needn't’t say anything if you don’t want to/ You don't have to say anything if you don't want.

- You needn't’t stay any longer tonight/ You don't have more to stay tonight.

To explain that someone did something that was not necessarily to do is used need not have or needn't’t have and the past participle. Often this design appeals to cases where the time of the Commission of the action the contractor and he had no idea that there is no need to commit itself.

- I needn't’t have waited until the game began I didn't have to wait until the game starts.

- Nell needn't’t have worked/ Nelu didn't have to work.

- They needn't’t have worried about Reagan/ They don't have to worry about Reagan.

If the perpetrator at the time of the act were aware of the fact that the action is not necessary, it is appropriate to say didn’t need to. This clarification is explained by the fact that the present tense refers to hypothetical necessity in General, and in the past tense denotes a specific action performed unnecessarily.

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- They didn’t need to talk about it/ They were not to talk about it.

- I didn’t need to worry/ I don't need to worry.

Also, one difference is that if you didn’t need to talking not sure whether the incident really until, until it receives additional information, it is possible to use didn’t and the modal verb have to. Examples:

- He didn’t have to speak/ He was speaking.

- Bill and I didn’t have to pay/ bill and I didn't have to pay.

Must vs. have to

Modal verbs must, have to are sometimes interchangeable. So, the verb have comes to the must in the past tense if you need to focus on something that shouldn't have happened in the past. You can replace must for It was necessary, It was important not to, had to make sure, had to make certain, and the like had to, modal verb in conjunction with them means “it was important/necessary” or “it is important/it is necessary to be sure”.

- It was necessary that no one was aware of being watched/ Was absolutely necessary, so that no one suspected that he was being watched.

- You had to make sure that you didn’t spend too much/ You should make sure that you haven't spent too much.

- We had to do our best to make certain that it wasn’t out of date/ We had to do everything in our power to make sure that it has not expired.

- It was important not to take the game too seriously/ it Was important not to take the game too seriously.

Vs Should and ought. have to

Should and ought can be used to tell about a moderate need, that is, the feeling of necessity is not as strong as if we used must.

Should and ought are very common in spoken English. Should, as a true modal verb, requires the use of the subsequent verb in the base form. And ought require after myself to-infinitive. The negation of these verbs looks like should not, shouldn't, ought not, oughtn’t means that there is a moderate need to do anything.

There are three cases in which put should, ought,

1) When it comes to performance, no positive or corrective action.

- We should send her a postcard. We should send her a postcard.

2) When you want to advise someone to do something or not to do.

- You should claim your pension 3-4 month before you retire. You must apply for a pension 3-4 months before the dismissal.

3) When you Express your point of view or asking someone else's opinion. Thus, in order to start a sentence, are often used: I think, I don’t think, or Do you think.

- I think that we should be paid more. / I think we should pay more.

Try to distinguish the cases in which is used should, ought modal verb have to. The exercises below contain gaps, fill them.

- We _______ spend all the money. We don't have to spend all the money.

- He ______ come more often . He should come more often.

- You ______ see him again. / You don't have to see him again.

- You ______ use a detergent. You should not use detergent.

- You ______ get a new TV. / You need a new TV.

- You ______ marry him. You shouldn't marry him.

- I don’t think we ______ grumble. I don't think we should complain.

- Do you think he ______ go? / Do you think that he should not go?

- What do you think we ______ do? / What do you think we should do?

To say that in the past there was reasonable necessity to do something, but the action was not committed, used: should have or ought to have with the past participle. For example, if they say I should have given him the money yesterday, I mean, yesterday there was reasonable necessity in the transfer of money, but the money was not provided.

- I should have finished my drink and gone home. I had to finish your drink and go home.

- You should have realized that he was joking. / You were supposed to understand that he was joking.

- We ought to have stayed in tonight. We had to stay the night.

- They ought to have taken a taxi. They had to call a taxi.

If you want to say that it was important not to do something in the past, but, nevertheless, it was used should not have, ought not to have. For example, if you said I should not have left the door open, it is understood that it was important that someone didn't leave the door open, but the door, however, remained open.

- I should not have said that. / I'm not supposed to say that.

- You should not have given him the money. / I'm not supposed to give him money.

- They ought not to have told him. They weren't supposed to tell him.

- She oughtn't to have sold the ring. / She wasn't supposed to sell the ring.

Had better

To indicate a reasonable need to do something in a particular situation, use had to. The modal verb at the same time losing to and added better forming had better accompanied by a verb in the base form. Also had better can be used to give advice or to Express their point of view on any issue. Although usually negative particle is placed immediately after had to, modal verb, and not in this case separated better. The negative form looks like a had better not.

- I think I had better show this to you now. / I think I better show you now.

- You’d better go tomorrow. / You'd better come tomorrow.

Although it had better resembles the shape of the elapsed time, it is never used to moderate the need in the past. And correct form is always had better (didn't say have better).

- I’d better not look at this. / I'd rather not look at it.

Thus, range values have a lot of separate semantic units, which do not always behave according to common logic. For example, had to (modal verb have to in the II form) may not always indicate the elapsed time.